photo from Ynyslas surfing video
Our first reports primarily came from the Paddler's Pod because they started asking the question - Paddler's Pod Website - they ask interviewees what their fastest 1 km has been. It seems like many if not most of the earlier reported times were simply experienced during great downwind runs or surf outings and not when these paddlers were intentionally trying to produce the fastest 1 km they are capable of hitting.
As of 2023 interest has grown (and folks seem to be getting more competitive about this), downwinddragrace on Instagram is now taking entries and reporting fast 1 km downwind times.
NOW OUTDATED - as of the end of 2023 - NOW FOLLOW downwindgrace TO KEEP UPTODATE